Medway · England
Window & door mastic in Kemsley Street, Medway
Window mastic for Kemsley Street and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Cracked internal joints between frame and plaster
- A bead that does not match the frame
- Mastic that has split away from the wall
Window mastic in Kemsley Street, done properly
Every window and door frame has a gap around it, and mastic is what closes it. Once that seal fails, wind and rain find the gap. Our applicators cut it out and replace it with a flexible, weatherproof sealant. If you have hard, cracked sealant around windows and gaps left after new windows were fitted, we can help, on timber windows & doors, aluminium frames and uPVC windows alike.
In a village or hamlet like Kemsley Street, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
All of our work is guaranteed for twelve months.

- Location
- Kemsley Street (ME7)
- Region
- Medway
- Cover
- One year on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
What we do, step by step
There is not much for you to do on the day. Show us the job and we’ll take it from there. The work itself takes anything from an hour or two to a full day, depending on how many frames there are, including the tidy-up. For a village or hamlet like Kemsley Street, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- Each frame is looked over and we agree which ones need resealing.
- We remove the old mastic and clean the frame edge and wall.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
Preparing for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about any previous sealing or DIY attempts
- Mention any leaks or damp you’ve noticed
Getting a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work before giving you a price.
Advice
Looking after it afterwards
Aftercare is simple, and it makes a real difference:
- Wash the frames with mild soapy water
- Keep paint off silicone joints
- Keep solvents and bleach off the sealant
- Wipe condensation off the frames
Timber frames need their paint kept up, since wood that gets wet swells and shrinks more. Keep paint off the silicone itself.
A small gap around a frame only grows. As old mastic keeps shrinking, the gap widens, and a cold room gets colder. Resealing closes it.
Surface by surface
Patio & French doors
Heavy door frames can move more than windows. A flexible sealant copes with that.
uPVC windows
Fitters’ mastic on plastic frames is sometimes thin and rushed. We cut it out, back any deep gaps and reseal properly.
Window mastic in Kemsley Street: local notes
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Homes close to Church of St Peter include some older properties, and the joint between an old wall and a newer frame is usually the first place rain gets in. Schools such as Deanwood Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Kemsley Street is about 3 miles south of Gillingham, in Medway. Wherever you are in the ME7 postcode area, we cover window mastic for homes and businesses. We cover 68 towns and villages across Medway. We also work in Chelmsford, about 28 miles from Kemsley Street.
Our applicators cover all of ME7 for window mastic and the streets around it. We also cover Bredhurst (1 mile west), Scragged Oak (1 mile south), Dunn Street (1 mile south-west), Park Wood (1 mile north-east) and Lower Cox Street (1 mile south-east). We also work in nearby towns such as Gillingham (3 miles north), Chatham (3 miles north-west), Rochester (6 miles north-west), Strood (6 miles north-west), Luton (3 miles north-west) and Twydall (3 miles north).
Local landmarks in Kemsley Street
In Kemsley Street, that means homes and buildings near Rainham School for Girls and Levan Strice, among other places. Kemsley Street’s nearest station is Rainham (Kent) station, roughly 2.5 miles north-east. A little further out are KIMS hospital (3.5 miles south-west) and Allington Castle (4.3 miles south-west). Green spaces nearby include Burham Down and Detling Hill.
What sealant work cannot fix
In fairness, there are a few things sealant won’t fix:
- Condensation trapped between the panes
- Worn gaskets, brush seals or a door that has dropped
- Faulty window hardware
If you are not sure, just phone 0345 464 0079 or drop us an email and we will give you a straight answer.
Where we work in Kemsley Street
- Window sills
- uPVC windows
- Patio & French doors
- Composite doors
- Aluminium frames
- Timber windows & doors
How we quote for window mastic
There’s no set price list, because no two jobs are the same. The quote depends on:
- Whether old sealant or filler has to be cut out
- The number of rooms or windows
- Any mould that needs treating
- The product the joint needs
Leaving a failed joint generally makes the job bigger, not smaller, because water and mould keep working on it. If you are not sure whether it needs doing, call 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
Helping us quote
There’s no need for technical detail. Just tell us:
- A few pictures by email, if you can
- Whether it’s a home or a business
- Any previous sealing or DIY work
- The problem you’ve noticed
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand, and we’ll come back to you with a quote.
What we’re called out for in Kemsley Street
A lot of older mastic was never designed to stay flexible. Once it’s rigid, every bit of frame movement pulls at it, and a gap opens along one edge.
Signs it’s time to call us include:
- Untidy mastic left by window fitters
- Hard, cracked sealant around windows
- Cold air getting in at the frame edge
- Gaps between the frame and the inside reveal
Rented homes near Rainham (Kent) station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
Questions to ask before you book
- How long to leave it before use
- Are they insured?
- The length of the guarantee
- How the colour is chosen
FAQs for Kemsley Street
Can you do window mastic in Kemsley Street?
Yes, Kemsley Street is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or drop us an email and tell us what needs doing, and we’ll give you a clear price.
Do you work for landlords with property near Rainham (Kent) station?
Yes. We work for landlords and agents as well as householders, and several properties can go on one quote. You can call 0345 464 0079 or send us an email with the details for a clear quote.
What sealant do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We’ll tell you what we are using and why.
Will it make a mess?
No. The area is protected while we work and cleaned up afterwards.
Is the work guaranteed?
Yes. Our one-year guarantee covers every job, inside or out.
Should I try DIY first?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.
Can new sealant go over the old?
No, because it fails. We remove every bit of old sealant first, so the new joint bonds to clean surfaces.
How long should I leave it?
That depends on the sealant used, so follow the cure time we give you when we finish.
Landlords, agents and businesses in Kemsley Street
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
For anyone letting property in or around Kemsley Street, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.
